OPENCAST MINING EQUIPMENT TECHNOLOGY TRENDS LARSEN & TOUBRO OPENCAST MINING EQUIPMENT TECHNOLOGY TRENDS REENERGISING INDIAN COAL SECTOR NOV 12th , 2013 : New Delhi

Trends Mining Equipment Size Equipment Operating Systems Equipment Tracking Systems Equipment Management Systems. Safety Features.

In Mining, Size matters….

Loading Tool : Shift Electric Rope Shovels Hydrualic Excavator Electric Rope Shovels deployed by PSU Mining Cos. Hyd. Backhoes / Shovel (10-34 Cu.M. Class) – Private sector Indian Mining Cos. e.g. Hindustan Zinc, EMTA, Jaypee group, Electro steel, Essel Mining, Mahaan Coal. PSU Mining Co. (SECL, NCL, SCCL, NMDC) started procuring (10-12 Cu.M.) class HEX. Tendency to shift to Hyd. Backhoes due to selective mining capability and higher productivity.

Hauling Equipment – Increasing size 30 T / 40 T Payload dump trucks 100 T to 240T Payload dump trucks Industry moving to larger payload (up to 240T class) Dump trucks. Shift took place at PSU mining Cos. like SECL as well as Pvt. Mining Cos (HZL, Reliance, Essar ). Deployment of large capacity trucks due to significant improvement in Productivity with less manpower.

Benefits – Large Capacity Equipment Higher economic life. Enhanced productivity. Reduced Manpower. Reduced Cost per ton. Reduced in pit Traffic congestion. Enhanced in pit Safety. Enhanced Reliability due to proven global technology.

Equipment Operating Systems

Intelligent Machine Control. HYBRID

Hydraumind : “Hydraulic-Mechanical Intelligent New Design Integrated Hydraulic & mechanical systems, which supervises the excavators operations. Not computer dependent & not even essentially electronically controlled.

Genuine Answers for Land & Environment Optimization Provided optimal solutions benefiting from IT Reduced environmental impact Assured safer operating conditions Supplied powerful, superior-quality equipment Building on the technology and expertise Komatsu has accumulated during more than 85 years of successful business operations: - GALEO presents customers worldwide with a strong, distinctive image of technological innovation and exceptional value. Designed with high productivity, safety and environmental considerations in mind, as it is expressed in "Genuine Answers for Land & Environment Optimization", the machines in this line reflect Komatsu's commitment to contributing to the creation of a better world. Four elements are contained with the GALEO name, each an essential theme for our business: Providing optimal solutions benefiting from information technology; Reducing environmental impact; Assuring safer operating conditions; and Supplying powerful, superior-quality equipment.

Integrates Electronic , Engine and Hydraulic Technology. Meets and exceeds latest emission requirements & optimises fuel consumption. Helps perform heavy duty jobs at all times.

Hybrid Hydraulic Excavator Uses electrical components not found in its conventional counterpart : a generator motor, inverter, capacitor and electric swing motor. Converts large amounts of energy lost in swing motor braking into electric energy & stores it in the capacitor. Stored energy used to power swing motor or the generator motor. The generator motor assists the engine in driving the hydraulic pumps. Saves fuel consumption up to 25%.

Intelligent Machine Control Fully Automatic Blade Control For Rough And Fine Dozing Can perform both rough dozing & finish grading with ease. Seamless transition from rough dozing to finish grading operation. Increased efficiency & productivity.

High Technologies (AHS) –Unmanned Dump Trucks How Komatsu’s Autonomous Haulage System Works GLONASS Satellite GPS Satellite 1) Hauling - Precise navigation - High speed and robust control 2) Loading Site Automatic path generation to loading machine 3) Dumping site - Paddock dump (Auto path generation) - Crusher dump (Designated location) 4) Fleet Control - Flexible and expandable - Manual vehicle interaction - Grader interaction 5) Safety Obstacle detection by millimeter wave radar 6) Operation - High availability - Economical - Reliable Master LinkTM Water Truck Motor Grader Central Office Komatsu promotes the research and development of original leading-edge technologies for commercialization in many areas. One such effort includes the development of an autonomous haulage system (AHS). In this system, unmanned dump trucks equipped with state-of-the-art technologies, such as a high-precision GPS and millimeter wave radar, automatically approach loading equipment and travel along the assigned road to the designated point for dumping. AHS has a high-tech manual interaction function to maintain the safety of vehicles in the AHS area, including other manual vehicles, such as motor graders and water trucks. If a person comes close to the truck, it detects the person with an on-board radar and stops automatically. We believe that this kind of advanced technology will contribute to the improvement of our customer's operations, especially in terms of safety and productivity.   This AHS is just one example of our advanced technologies that we will continue to conduct research and development on into the future.

Trolley Assist Power Supply from a Transmission Line rather than a Diesel Engine Benefits Increased Productivity Lower Fuel Consumption Higher Speed on Grade Typical Application: Uphill Haul Segments Established Travel Routes Large Diesel Fuel vs. Electric Power Cost Difference > 100 Operating Trucks Worldwide No. of Clicks: 2 - (1) Major Benefits/Increased Productivity (2) Next Slide Presentation Notes: - transmission line provides additional power to take advantage of the extra wheelmotor capacity that current diesel engines cannot fulfill. - maximum 860E wheelmotor capacity ~5200 hp - Electric wheelmotor design practices address both propel and retarding applications. * retarding application results in greater power quantities than propel. * thus extra hp capacity not typically used in propulsion. #1 – Let’s see how this extra wheelmotor power is used. September 2009

Diesel vs. Trolley Application Zones Diesel Application Zone 0.20 Example 1: Energy cost $0.15 kwh Diesel cost: $0.50 / L Example 2: Energy cost $0.10 kwh Diesel cost: $0.80 / L Diesel Application Zone Diesel 0.15 Power ($/kwh) Trolley 0.10 Lowest Cost Option No. of Clicks: 4 - (1) Diesel App. Zone (2) Example 1 (3) Example 2 (4) Next Slide Presentation Notes: #1 - Primary Graph Concept is to define lowest cost/ton option for two key variables: * Diesel Fuel Cost * Electric Power Cost - Trolley Feasibility Readily apparent based on large size of 1000 meter application. - Trolley Segment Grade = 8% + 1%. - Diesel Fuel Cons. = 35 lph - Power Cons. = 3420 kw (1800 v x 1900 amps) - Trolley System Avail. = 80% Trolley Application Zone 0.05 Lowest Cost Option 0.20 0.40 0.60 0.80 1.00 1.20 Slope Length: 1000 m Diesel ($/liter) 2000 m September 2009

Equipment Tracking Systems

Machine Tracking System KOMTRAX: Machine Tracking System How KOMTRAX works Communication Satellite / Mobile Phone Machine Data server Web Application Server Internet GPS User Distributor / Customer KOMTRAX Terminal GPS antenna Pump controller KOMTRAX Controller Engine controller Communication antenna Modem KOMTRAX is a machine management system for construction equipment, utilizing web technology.   The main purpose of this system is to reduce customer's operating cost by monitoring service meters, machine positions, working records, warnings, fuel level and others. The total lifecycle cost of machines consists of machine cost and operating cost. The operating cost includes maintenance, fuel, and the operator's wage. In general, the operating cost is as much as two to three times higher than the machine cost. KOMTRAX aims to lower the operating cost. The chart at the center of this slide, shows how KOMTRAX works: Machines are equipped with computers such as a pump controller and an engine controller. Information concerning operating conditions gathered through these controllers is sent to the KOMTRAX terminal. As for machine positioning, KOMTRAX receives the information from GPS satellites. The collected information is then converted into a data format which our customers can easily see after analyzing the data with web applications. Then the information is transmitted to customers and distributors all over the world. In 2009, the number of KOMTRAX-equipped machines has topped the 140,000 mark. This service is not available in certain area.

EXPERIENCE IMAGINATION AN BEYOND KOMTRAX : Machine Tracking System Full Machine Monitoring Complete Machine Status Total Fleet Management KOMTRAX Reports EXPERIENCE IMAGINATION AN BEYOND

KOMTRAX : Machine Tracking System

KOMTRAX Plus Proactive Support Integrates KOMTRAX & VHMS ( Vehicle Health Monitoring System) for component condition & operation data monitoring on a continuous basis. Satellite Communication Gateway Control Center KOMTRAX Plus data download KOMTRAX Plus data Wireless download Machine condition data Machine operation data Internet T/M Severity Engine Severity Payload Data At Distributor KOMTRAX Plus Database DATA ANALYSIS Proactive Support Prompt communication: Reduce unscheduled repair. Accurate forecast: Extend and optimize major component life. Reduce cost for repair and maintenance Keep high machine availability 8

Equipment Management Systems

MINES MANAGEMENT SYSTEM Modulur Mining GPS Collection Survey Bulldozer Operation System Digging Operation System Dump Truck Dispatch System GPS Signal DISPATCH is the management system for mining operation. DISPATCH is developed by Modular Mining Systems, one of Komatsu group companies. Positioning of machines can be easily identified by GPS-based DISPATCH and enables you to dispatch the right machine to the right place, and optimizes the assignment of the fleet. DISPATCH is used in many mining sites and is the de facto standard on a worldwide basis.

Mine Management Packages

Safety Features

SAFETY FIRST: Features Rear View Camera and Monitor Payload Meter Vehicle Health Monitoring System (VHMS) Auto Spin Regulator (ASR) Auto Fire Suppression System (AFSS) Auto Centralized Lubrication (ACLS) Antilock Brake System (ABS)

ARSC ARSC (Automatic Retarder Speed Control) HD785-7 ARSC Descending down hill in constant speed without retarding control Descending speed can be set from 10 km/h to 55km/h Adjusting pre-set speed ±1 km/h With Retarder Overheat Caution Operation feels like auto-cruise control on automobiles Concentrates on steering control Improves Efficiency Reduces operator fatigue Pre-set vehicle speed Up speed Down speed

Operator Cabin With Integrated FOPS FOPS according to ISO 3449 Falling Objects Protective Structure protects operator from injury Test Procedure: 227 kg ( 500 lb ) falling from 5,3 m ( 17‘4“ ) onto FOPS structure A mass with the energy of 11600 Joule falling onto the cab roof, should not cause penetration of any part of the FOPS structure Test result: positively no penetration

Control Panel : Security in Operation and Machine Handling Continuous display of operating status. Stored and accessible precise service information for quick trouble shooting, timely service and repairs. Plain text display for continuous monitoring Additional acoustic warning with, if necessary, engine shut down Fault messages stored and can be downloaded Memory protected with battery back-up Fault Monitoring and Storage ETM System ECS System VHMS System

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